Liquid flow regulating valve



Feb. 13, 1934a M, 95 UN 1,946,734

LIQUID FLOW REGULATING VALVE Filed Feb. 17, 1930 Patented Feb. 13, 1934UNITED STATES PATENT OFFICE LIQUID FLOW REGULATING VALVE ApplicationFebruary 17, 1930. Serial No. 429,009

2 Claims.

This invention relates generally to a liquid flow regulating valve andmore particularly to means where by the amount of water flowingtherethrough may be readily determined.

3 In the use of regulating valves of the type noted, it is imperativethat the water supplied to the furnace humidifier shall be substantiallywhat the heat coming from the furnace will vaporize so that there shallbe no very large excess at least of water to overflow and pass to theash pit of the furnace; though a certain measure of over flow to the ashpit to dampen the ashes taking place during the night time when thefurnace is not heated to as high a degree as dur- 5 ing the day time isnot only not objectionable but is in fact beneficial for reducing dustwhen the ashes are removed. But even with the permissible overflow tothe ash pit, it is very desirable and necessary that there shall be acontinuous limited flow of water to the humidifier, regulated againstoverflow to any detrimental extent and yet suficient that thehumidifying apparatus shall at all times be supplied with water forvaporizing. I have previously obtained United States Letters Patent No.1,572,469 on a construction of regulating valve for the purpose statedand the present invention is directed to improvements in constructionfor permitting visual inspection of the flow from which the amount ofpassage of water to the humidifying apparatus may be gauged and theregulating valve properly set after very little experiment so as tosupply water to the humidifier in regulated amount as needed and withoutdetrimental excess.

An understanding of the invention and the construction embodying thesame whereby beneficial results in inspecting and regulating the flow ofwater to a furnace humidifier are secured, may be had from the followingdescription, taken in connection with the accompanying drawing, inwhich,

Fig. 1 is a central vertical section through the regulating valve withthe attached drip sight of my invention, and

Fig. 2 is an elevation thereof with a water inlet pipe and a pipe forconducting the liquid away shown attached.

Like reference characters refer to like parts in the figures of thedrawing.

In the construction of the regulating valve, a housing 1 is providedopen at one end and interiorly threaded while at the opposite end it isreduced in size making the stem 2 exteriorly threaded at its outer endand having an axial interiorly threaded opening therethrough. At theunderside of the housing 1 it is provided with an integral downwardlyextending boss 3 having an interiorly threaded opening therethrough.

A valve stem 4 is formed with a threaded section to engage with theinteriorly threaded open- 50 ing through the part 2. The stem 4 passesthrough suitable packing and a nut 5 to compress the packing around it,which nut is attached to the outer end of the part 2; and at its endbeyond said packing the stem 4 is provided with an operating hand wheel6. At the inner end of the stem 4 is a somewhat enlarged cylindrical cup'7 integral with the stem 4, said cup at its free end being formed withan outwardly extending annular head or flange 8.

At the open end of the housing 1, a combined packing gland and watercarrying member 9 is located, having a sleeve 10 exteriorly threaded tothread into the open end of the housing 1, and likewise having a muchsmaller sleeve 11 located within and extending in the same direction asthe larger sleeve 10, there being a water conducting passage 12extending lengthwise of the sleeve 11 and entirely through the gland 9joining with an opening in a projecting threaded neck 13 at so the outerend of the gland 9 as shown.

The flange or head 8 on the cup '7 extends into the annular openingbetween the sleeves 10 and 11 and the sleeve 11 projects into the openend of the cup 7. In the annular opening between the sleeves 10 and 11packing 14 is disposed and it is evident that the packing may becompressed to a greater or less degree by turning the valve stem 4 so asto force the flange 8 against the packing or move it away therefrom. Itwill be noted that there is a space between the outer side of the sleeve11 and the inner sides of the cup 7 and also between the outer edges ofthe flange or head 8 and the inner side of the sleeve 10. These spaces,as shown in the drawing, are exaggerated for purposes of disclosure, butit is apparent that water passes through the passage 12 into the cup 7,goes therefrom to the packing 14, passing slowly therethrough, andthence around the flange or head 8 so that it may pass from the housing1 through the opening made in the boss 3; and the rate of passage of thewater is governed and controlled by the pressure which is put on thepacking 14.

The water which flows through the packing 14 is delivered into the openupper end of a drip member 15 screwed into the boss 3 and dependingbelow the same. Integral with the member 15 at its lower end is a head16 from which a. nozzle 17 projects downwardly. The head 16 and thenozzle have a restricted vertical passage 18 for water which connectswith the larger opening in the member 15 as shown.

Between the head 16 and the lower end of the member 15 is an annulargroove 19. The upper portion of the head 16 is of convex form whereby avertical sleeve 20, formed at its lower end with a depending exteriorlythreaded neck 21, may be passed at its upper end, over and around thehead 16 and thereupon have the upper end spun inwardly into the groove19 and connect with the grip member yet be freely turnable about thesame on its longitudinal vertical axis. This sleeve 20, from a point ashort distance above the lower end of the nozzle 1'? downwardly, isformed with opposed elongated slots or openings 23 therein.

The regulating valve construction described is adapted to have a pipe 24connected with the threaded neck 13, pipe 24 in turn having suitableconnection with the water supply so as to carry water under pressureinto the cup 7 for passage through the packing 14. Likewise the neck 21at the lower end of the sleeve 20 is adapted to have a lead-away pipe 25connected thereto for carrying water to the furnace humidifier. Theregulating flow valve accordingly may be mounted at any desired positionwith reference to the furnace and in practice is preferably mounted nearthe upper end of the furnace so as to be easily seen and readilyaccessible for operation. The sleeve 20 may be turned to a position sothat the water dripping from the lower end of the nozzle 1'7 can be seenbest. The rate of flow of the water is thus easily gauged by sight andthe amount of increase or diminishing is also quickly and easily seen sothat the regulation of the passage of water to the humidifier is made assure and easy as possible.

The construction described has proved very practical and serviceable inoperation. The holding of the packing 14 between an outer sleeve 10 andan inner rigid member such as the sleeve 11 has made it possible tobetter control and regulate the passage of water. The constructiondescribed is of a practical commercial design and one which has beenperfected after long ex periment; and with the drip sight auxiliarythereto it is a construction of exceptional and proven merit. Theinvention is defined in the appended claims and is to be consideredcomprehensive of all forms of structure coming within their scope.

I claim:

1. The combination of a drip member and a hollow sleeve member, saiddrip member having a nozzle extending downwardly therefrom, means torevolubly mount said hollow sleeve member below and in alinement withsaid nozzle, said sleeve having an unobstructed opening in its side, theupper end of said opening being in substantially the same horizontalplane as the lower end of the said nozzle.

2. In an inspection device of the character described, a member having arestricted passage of predetermined size therethrough and an encirclinggroove near the upper end of said restricted passage, and a hollowsleeve provided with unobstructed elongated openings at opposite sidesfor the purpose described, the upper ends of said openings beingsubstantially even with the discharge end of the said restricted passageand said sleeve having its upper end turned inwardly into engagement insaid groove whereby the sleeve is permanently connected to said head andmay have turning movements about the same.

MARTIN DE LIN.

